Home / 215,157.58-322,441.11-136,130.33

Finding the Fourth Proportional to 215,157.58, 322,441.11 and 136,130.33

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Solution

The fourth proportional to 215,157.58, 322,441.11 and 136,130.33 is: 204,008.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,157.58 : 322,441.11 = 136,130.33 : x
  2. Step 2: Convert to fraction form
    215,157.58/322,441.11 = 136,130.33/x
  3. Step 3: Cross multiply
    215,157.58x = 322,441.11 × 136,130.33
  4. Step 4: Simplify right side
    215,157.58x = 43,894,015,515.97
  5. Step 5: Solve for x
    x = 43,894,015,515.97/215,157.58
  6. Step 6: Final answer
    x = 204,008.69

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.